什么叫电压中枢点?什么叫逆调压?什么叫顺调压?什么叫常调压?

2025-02-09 14:20:25
推荐回答(1个)
回答1:

在电力系统中选定某些枢纽点作为电压监视点,以监视全系统的电压,这些监视点就是电压中枢点。一般地区负荷较大的发电厂和中枢变电站的母线常选定为电压中枢点。 考虑到高峰负荷时供电线路上电压损耗大,将中枢点电压适当升高以抵消部分甚至全部损耗的电压损耗的增大;低谷负荷时供电线路上电压损耗小,将中枢点电压适当降低以补偿部分甚至全部电压损耗的减少,有可能满足负荷对电压质量的要求,这种调压方式叫逆调压。对于供电线路长,负荷变动大的中枢点往往采用这种调压方式。顺调压就是高峰负荷时允许中枢点电压略低;低谷负荷时,允许中枢点电压略高。对供电线路不长,负荷变动不大的中枢点,常采用这种调压方式。 在任何情况下都保持中枢点电压为一基本不变的数值叫常调压方式。

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